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https://issues.apache.org/jira/browse/HADOOP-6305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12764179#action_12764179
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Konstantin Boudnik commented on HADOOP-6305:
--------------------------------------------

It seems to be a separate problem: there's {{test.core.build.classes}} and 
{{test.build.classes}} 
The former is used to as the source of class files for the latter one. I.e.
{noformat}
  <target name="jar-test" depends="compile-core-test" description="Make 
hadoop-test.jar">
    <copy todir="${test.build.classes}">
      <fileset dir="${test.core.build.classes}"/>
    </copy>
{noformat}
While it certainly seems inappropriate it ought to be addressed by a separate 
JIRA such your HADOOP-6159. Does it make sense?

> Unify build property names to facilitate cross-projects modifications
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-6305
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6305
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>            Reporter: Konstantin Boudnik
>            Assignee: Konstantin Boudnik
>             Fix For: 0.21.0, 0.22.0
>
>         Attachments: HADOOP-6305.patch
>
>
> Current build files of {{common}}, {{mapreduce}}, {{hdfs}} have their own 
> unique ways of naming properties which otherwise have very same meaning. I.e. 
> the locations of java source code are called {{core.src.dir}}, 
> {{mapred.src.dir}}, and {{hdfs.src.dir}} respectively.
> It makes modifications needed for all three projects to be very unique thus 
> increasing the number of difference between builds of the projects.

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